What is an Impervious Calculation Worksheet?

Impervious calculations are the total area of the lot with a solid pad/ roof area that does not allow water to penetrate through the ground i.e., house foundation, driveways, porches, sidewalks, sheds, pergola, decks, patios and pool areas.  Please note that the water surface of pools are calculated as 50% of the total area square footage.  Any time a permit is being requested to extend, add on or create a solid base or solid roofed area to existing or additional structure, an Impervious Calculation worksheet must be included showing current solid areas or pavers and what is being added to existing.  Each lot/ parcel has an Impervious surface percentage that can not be exceeded.  Please check with the Planning & Zoning Department for what the impervious ratio is for a particular lot/ parcel.   

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1. What Building Codes are being used?
2. Why do I need a permit?
3. When is a permit required?
4. How much will my permit cost?
5. What happens if I choose not to obtain the required permits?
6. Do I need a contractor?
7. If I use a contractor, what should I know to choose one?
8. How long does it take to get a permit?
9. What happens after the permit is issued?
10. How much time do I have once the permit is issued?
11. Where is the Permitting office located?
12. What do I need in order to obtain a permit?
13. When may I start building?
14. When do I need inspections?
15. Can I change my mind about the way something looks or is done?
16. How long is a permit active?
17. Does the City require an approval letter from a condominium or homeowners association?
18. What types of exterior projects require a permit?
19. What is an Impervious Calculation Worksheet?
20. What types of interior projects require a building permit?
21. Is a permit required to install a heat pump or air-conditioning unit?
22. Is a permit required to install a new outlet, ceiling fan, or lighting fixture?
23. Is a permit required to install a new sink, toilet or hot water heater?
24. Do I need a garage/estate sale permit and what are the requirements for having a garage/estate sale?